The example 4 shows the ability to put trailing spaces, such as spaces after a number in a wikitable column (coded as: | 32.0{{in5}} ). Typical numbers (with "align=right"), in a table column, often appear crowded at the right-hand side, so appending "{{in5}}" can improve readability, in tables with lines between columns.

This Template:in5 is intended as a universal template, with the same name on all Wikipedia sites. The name "in5" with the digit "5" is unlikely to conflict with other-language Wikipedias. Care must be taken not to name a universal template with a name that would be an awkward or peculiar word in the other languages. However, in some cases, a universal template might need a different name in a few conflicting languages.

To insert spacing between each consecutive letter pair of any text, then span style="letter-spacing:value unit" can be used. For example, with <span style="letter-spacing:1.2em">, spanning the text "example", it would look like: "example". The spacing value may express any number from 0 on; also fractions like .45 are possible, and the unit may be "em" or any standard measurement unit (pt, px, cm, mm, in).

Template {in5} generates a mix of &nbsp; and spaces to avoid the space compression done by the MediaWiki parser. Each &nbsp is stored inside the formatted page (such as seen by the browser option: <View><Source>). The output is optimized to be the shortest possible markup language for spaces, in a variety of different browsers.

Typically, {in5} runs much faster than Template:spaces, generating 1/3 the markup per use (as 72% less text, over 50 fewer characters each time). Also, {in5} allows 50 spaces, whereas {spaces} has been limited to 15 spaces during 2009-2010.